Patent US661340A successfully refreshed from Google Patents.
US661340A
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US
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Means for electrolyzing liquids.
Assignee: Individual
•
Filing: 1900-07-18
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Granted: 1900-11-06
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Expires: 1920-07-18
Abstract
No abstract record available.
Inventors
- 👤 Albert R Grever
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:54
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/46; C02F1/461; C02F2201/00; C02F2201/46; C02F2201/461; C02F2201/46105; C02F2201/4612; C02F2201/46145
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1903-11-06 | 1904-05-07 | 1904-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-11-06 | 1908-05-07 | 1908-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-11-06 | 1912-05-07 | 1912-11-06 | $7700.00 | Window Closed / Lapsed |